Series 3700A System Switch/Multimeter Reference Manual  Section 11: TSP command reference 
3700AS-901-01 Rev. D/June 2018  11-257 
 
Also see 
fileVar:read() (on page 11-243) 
Script examples (on page 9-5) 
 
io.type() 
This function checks whether or not a given object is a file handle. 
 
Usage 
type = io.type(obj) 
 
Indicates whether the object is an open file handle 
 
Details 
Returns the string "file" if the object is an open file handle. If it is not an open file handle, nil is 
returned. 
Also see 
Script examples (on page 9-5) 
io.open() (on page 11-255) 
io.write() 
This function writes data to the default output file. 
Usage 
io.write() 
io.write(data1) 
io.write(data1, data2) 
io.write(data1, ..., dataN) 
 
One or more values separated by commas 
Details 
All data parameters must be either strings or numbers. 
Data is not immediately written to a file when you use the io.write() function. The io.write() 
function buffers data; it may not be written to the USB flash drive immediately. Use the io.flush() 
function to immediately write buffered data to the drive.